Drainage assembly



March 5, 1957 H. RICHTER DRAINAGE ASSEMBLY Filed Nov. 25. 1952 Unite Theinvention relates to a drain of condensed water for steam plants inwhich the condensed water is drained from the steam chamber through anozzle.

The purpose of the nozzle is based on the known fact that only a smallamount of steam, viewed from the weight standpoint can p ass through anozzle, but a much larger amount of condensed water can passtherethrough. If the nozzle is well adapted to the condensed water to bedrained with respect to its passage capacity, and the flow of condensedwater remains substantially uniform, the passage of steam can beentirely prevented. Also, under most unfavorable operating conditions,namely where no condensation occurs, only a very small amount of steamcan leave.

inasmuch as the nozzle is quite insensitive, and, also drains air andgases, it offers numerous advantages, but it presupposes a correctlyselected nozzle width.

Thus, the invention relates to an installation which enables in an exactmanner to permit a subsequent test of the nozzle bore, and to also allowa continuous checking of the operation if a change of nozzle unitbecomes necessary.

The instant invention materially improves the prior units by providingthe collecting chamber for foreign matter with a partition or wall whichis so arranged that the lower edge of the partition or wall is at alower level in the chamber than the inlet and outlet openings as well asthe inlet mouth of the nozzle element.

In the the case of horizontally disposed conduits, the partition or wallis vertically mounted within the chamber while in the case of verticallyor angularly mounted conduits, the partition is disposed angularlyrespecting the inlet and outlet openings and in Such installations, ithas been found desirable to employ two spaced partitions.

More specifically, the partition is disposed within the chamberforwardly of the nozzle element or between the nozzle element and theinlet so that the waste water ow ing through the assembly must initiallypass the partition before reaching the inlet mouth of the nozzleelement. To permit the current of condensed water and steam about thelower edge of the partition to be seen, one or more sight glasses areincorporated with the lateral walls of the chamber and preferablyopposite to each other, with the center of each sight glass lyingopposite the lower edge of the partition. Furthermore, the entrance ofthe nozzle extends sufficiently far into the chamber to permit the sameto be directly viewed through such sight glasses.

nem f 2,783,770 Patented Mar. 5, 1957 'ice or small. Due to the size ofthe sight glasses, and the relationship of the nozzle with respect tothe chamber,

So long as condensed water flows off through the nozzle the operation ofthe assembly can be continuously watched and make any replacement of thenozzle if the conditions warrant such replacement.

To facilitate the replacement of the nozzle element, the cleaning of thesight glasses, et cetera, a stop valve member may be installed in theinlet to the chamber thereby enabling such repairs or replacements to beelected during the operation of the installation.

If desired, a temperature measuring unit, such as a bimetal thermometermay be installed in the assembly at a point opposite to the outlet endof the nozzle element thereby permitting the temperature of thecondensed water to be determined as it ows olf. Since the temperature ofthe water drops during rising, this unit allows a speedy check ofpossible plugged conditions in the installation.

Since the bottom of the thermometer support is subjected to the directaction of the water jet emanating from the nozzle, a rapid transfer ofheat occurs and a corresponding rapid rise of the thermometer.

The numerous objects and advantages of the present invention will becomereadily apparent from the ensuing description and the attached drawings.

In describing the invention in detail, reference will be had to theaccompanying drawings forming part of this specification, wherein likereference characters indicate corresponding parts in the several views,and in which:

Figure 1 is a vertical sectional view of a drainage assembly embodyingone form of the inventive concept.

Figure 2 is a view similar to Figure 1 illustrating a further embodimentof the invention.

Figure 3 is an elevational view, partly in cross-section of anotherembodiment wherein a stop valve is located in the inlet to the assembly,and,

Figure 4 is a vertical sectional View of the form used in vertical orangularly disposed conduits.

As shown in Figure 1, the assembly comprises a two part housing 10including an upper member 11, a lower member 12 and securing means 13providing a leak proof union between the two members. An inlet 14 and anoutlet 15 are formed in the upper member 11, the respective elementsbeing coupled to conduits, not shown.

The lower member l2 constitutes a collection chamber 16 for foreignmatter and the securing means 13 is such that the lower member may beremoved from the upper member for repair, cleaning purposes and thelike. Integrally formed with the top wall of the upper part 11 anddepending into the chamber 16 is a vertical partition lor wall 17 and itwill be noted that lower edge 18 of the partition terminates asubstantial distance below the inlet and the outlet 14 and 15respectively. Also, the edge 18 is of greater perimetric dimensions thanthe re mainder of the partition and is substantially circular incross-section. It has been determined that by thus forming the loweredge of the partition, the ilow of the condensed water along the loweredge is particularly quiet.

As depicted in Figure 1, the outlet 15 is provided with an angularlydisposed casing in which a nozzle 19 is removably mounted and inletmouth 20 of the nozzle is located above the lower edge 18 of thepartition. A ball 21 is lodged in the outlet of the nozzle and functionsas a one way valve element. A manually operated actuator 22 is providedfor the ball 21.

Thus, it will be appreciated that the assembly includes but fewessential working parts thereby permitting the assembly to beinexpensively manufactured and the repair and replacement costs can bemaintained at a minimum. The water entering the assembly through theinlet 14 first iills the chamber 16 and continues to rise until theessere@ level has reached the inlet mouth 20 of the nozzle. Thecondensed water then enters the nozzle and is discharged in iet forminto the outlet opening l5 leading to the discharge conduit.

During operation, the lower edge 108 0f the partitionY 1 1 is deeplyimmersedvin the water and if the cross, Section of the nozzle is toolarge not only condensed water but also steam will drain off. The steamcannot enter the mouth 20 directly because of the partition and must pass between the lower edge 13 and the water level. Thus,`the steamapplies a pressure to the water level and the level drops and thegreater the amount of steam in the flow, the greater the fall of thewater level. A

As hereinbefore mentioned, Vthe housing is provided with sight glassesto permit the inspection of thef interior of thef'assembly and Vsuchsight glasses are shown at 23. 'Ifhe glasses are of such size' and areso located in the housing "walls that the lower edge 1d of the partitionand thel mouth end. 20 of the nozzle. 1,9 can be. easily seen,Furthermore, the mid point of each glass 2.3A lies oppo-v site tothelower end of the partition which means that the current of the condensedwater and the steamy about such lower end of the partition can bereadily observed. Hence, the drop .of the water level is` readilyvisible through the sight glasses and the amount of steam in the flowcan be quickly determined.

In the modification illustrated in, Figure 2, the same; referencecharacters are used with thev exception they are, primed. The primarydierence resides in the fact that the nozzle 19' is mounted in theoutlet 15' coaxially with the outlet instead of at an angle thereto.Also, the lower edge Y1S of the partition 17 need not extend too deepinto the chamber 16 so long as the edge is below the nozzle mouth 20?and the inlet 14 as well as the outlet 15'. Obviously, the steam cannotenter the nozzle directly from the inlet 14.

This modification functions in the same fashion as Figure 1.

AFigure 3 is also quite similar to Figure l and here.

again, the same characters are used although theyy are double primed. Inthis form, the inlet 14 is provided.

with aV seat. 3i)U for cooperation with a manually operated valve 31 bymeans oi which the flow into the housing 1,0" can be arrested during theoperation of the. installation Also, the nozzle 19" is surrounded by atubular screen or sieve 32.4 and the condition of the sieve can` beascer-v tained through the sight glasses 23". l

Mounted above the outlet end of the nozzle 1 9, in a suitableltting 33removably fixed in the upper wall of the member l1" is a bi-metalthermometer 34 of conT venient type andthe lower'wall of the fitting iscloselyv adjacent the outlet of the nozzle i9". Consequently,` thewaterA jetAA leaving the outlet of the. nozzle impinges ou the'bottomofthe thermometerfittingn andit is possible, to speedily. an accuratelydetermine. the .,temperature.. of'

the waste water.

Furthermore, the partition 17" is not integrally formed Withthe'uppermember 1l but rather is.l a separateele.-- ment which is detachablyafiixed to the upper member as depicted at 35.

The operation of thisk embodiment is the same.d as. thatdescribedvinconnection with Figuresl and 2. However,

the provision. ofthe valve parts 30 and permitsthe,

flow tobe shut ott to allow the assembly to be. repaired, cleanedhandthelike. s

To adapt the inventionfor use in special installations,

such .as vertically-V and angully arranged conduits, the

form shown in Figure 4 is employed. In this. form, 4 0,

indicates-.the` housing, 41 and 42 the inletV and outlet t0 thehousingrespectively, 43 the nozzle in the outlet and 44-i thepartitionarrangement generally.

The partition arrangement includes twospaced apart.

partitions t/and, 46 disposed within theY chamber and these partitionsare located at an angle of about. 45;

observed that the partition 4S extends in-to the chamber-` obliquelyfrom the inlet side whereas the partition 46 extends obliquely from theoutlet side in parallelism to the partition 45 which in efiect defines acircuitous path within the chamber.

The inner end of the partition 45 shown at 47 and the innerend 0f thepartition 4,6 denoted 48 extend into the chamber so thatthe free end 47lies somewhat beyond an imaginary prolongation of the obliquely locatedwall surface of the inlet 41 whereas the end 48 of the partition 46 islocated outside of the imaginary prolongation of the Wall. Surface 0fthe Outlet 42- It is believed manifest from this description that theflow in the chamber cannot directly enter the nozzle mouth and thisembodiment functions in a manner along the lines previously described.

Hence, in all of the forms disclosed, the.. lower edge of the partitionor partitions is below ythe inlet and, the outlet of the chamber as welias the nozzle. By the pro,-` vision of the sight glasses in the housingwalls, the interior of the assembly may be easily and readily viewed toyascertain the amount of steam present in the flow..

It is. to be understood that the invention is not to be confined to anystrict conformity with the showingsA in the drawings, but may be changedor modified so` long as. such changes or modifications mark no materialdepartu-re from the salient features of the invention as ex. pressed inthe appended claims.

I claim: A

1. A condensation drainer comprising a housingV hav-` ing a collectingchamber therein, a uid inlet communieating with the chamber, a fluidoutlet communicating; with the chamber, a partition within the chamberbetween the fluid inlet and the fluid outlet extending trans versely ofthe chamber, a nozzle having an inlet end and anl outlet end, meansmounting the nozzle in anrincliued; position relative to the. partitionwith the outlet end in, direct communication with the fiuid outlet, aball valve. controlling the outlet end of the nozzle, andV afree end on,theV partition beyond the inlet end of the nozzle, the fluid inlet andthe fluid outlet to normally hold the waterlevelwithout loss of vapor atsuch free end.

2. Ay condensation `drainer as defined in claim` l whered in atemperature indicating device is supported by the housing above theoutlet end of ther nozzle so that the water` emanating from.Y the nozzleoutlet end. directly impinges upon the temperature indicating device toindi.- v

endin direct communication with the fluid, outlet, a

partitionA within the chamber between the inlet end` of. thel nozzle-andthe, fluid in letextending. transversely ofI the., chamber and having-afree endbeyond the inlet end ofthe nozzle,ltheiuidpinlet, and thef'luidoutletto nor. mally, h oldthe,water level without loss of vaporv atsuch. free end, the fluid inlet and fluid outlet being inaxialfalignment andthe inlet andpoutlet ends of the nozzle beinginaxial.alignmentwith the fluid` inlet andoutlet.

5; A condensationdrainer comprising -a.housing,having a collectingchamber therein, a fluid inlet communicat-u ing with the chamber, afluid outlet communicatingwith the'. saidVIV chamber and in axialalignment with the'fluid inlet, a nozzle having an inletl end and anoutlet end mounted .in-.thefuid outlet withzsuchends in axial align.meut with .the uid. outlet, and at: least. one partition ex tending intothe chamber between the nozzle inlet end and the fluid inlet yat anlangle of about 45 degrees with -respect to the fluid inlet and fluidoutlet and having a free end terminating beyond the inlet end of thenozzle to normally hold the water level without loss of vapor at saidfree end of the partition.

1,639,208 Basenau Aug. 16, 1927 6 Vaughn May 28, 1929 Wimmer June 2,1931 Chevalier Mar. 6, 1934 Staege May 28, 1940 Nagle et al. Apr. l1,1944 St. Clair Apr. 28, 1953 FOREIGN PATENTS Great Britain of 1912Switzerland Nov. 16, 1932 Switzerland Dec. 1, 1943

